Astellas ISR Portal - Welcome
Investigator Sponsored Research Portal
We are now accepting new ISR proposals from the United States of America and Japan.
For USA: Proposals for enzalutamide and gilteritinib only may be submitted using this portal. For Japan: please go to
Should you have any questions, please reach out to the Medical Affairs contact in your Region or by contacting
or if US-based, call 1 (844) 827-9913.
This is your place to manage all of your investigator-sponsored research with Astellas.
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